Copper-based low-temperature reversible thermochromic material and preparation method thereof

A thermochromic material and low temperature technology, applied in the field of materials, can solve the problems of irreversible discoloration process and high discoloration temperature, and achieve the effects of simple and mature preparation method, low discoloration temperature and short discoloration time
CN106947977AInactive Publication Date: 2017-07-14HEFEI UNIV OF TECH
2 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2017-07-14
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a copper-based low-temperature reversible thermochromic material which is a Cu(OH)2 / HKUST-1 composite material and is low in color changing temperature, short in color changing time and short in time recovering time. A preparation method of the copper-based low-temperature reversible thermochromic material comprises the following steps: cleaning and drying a high-purity Cu sheet and a high-purity Ti sheet; preparing a Cu(OH)2 nanowire array by taking the cleaned and dried high-purity Cu sheet as an anode, taking the cleaned and dried high-purity Ti sheet as a cathode and using an anodic oxidation method; soaking the Cu(OH)2 nanowire array into an absolute ethyl alcohol solution of 1,3,5-benzenetricarboxylic acid, cleaning the Cu(OH)2 nanowire array by using deionized water, and drying the Cu(OH)2 nanowire array to obtain the low-temperature reversible thermochromic material of Cu(OH)2 / HKUST-1. The preparation method of the copper-based low-temperature reversible thermochromic material, disclosed by the invention, is simple and mature, low in cost, high in color changing contrast, low in color changing temperature, short in color changing time and color recovering time and high in reversibility.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a copper-based low-temperature reversible thermochromic material and a preparation method thereof, belonging to the technical field of materials. Background technique

[0002] The phenomenon that some mixtures or compounds change color when the temperature changes is called thermochromic, and the substances with this phenomenon are thermochromic materials. In recent years, thermochromic materials based on inorganic, organic, liquid crystals, polymers, and biological macromolecules have attracted more and more attention, and are widely used in various fields such as national defense, military, anti-counterfeiting marks, and daily decoration, such as Daily electrical appliances overheating alarm, mechanical device temperature distribution measurement, etc. The discoloration process of thermochromic materials is a process of thermophysical or thermochemical changes, mainly including crystal transformation, gain and loss of crysta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More